The crash was reported between State and Dakota avenues about 9:30 a.m.

Officials said a flatbed tow truck from Fix It Auto Service hit an Iowa DOT trailer/dump truck.

The driver of tow truck was pinned in his vehicle and was taken to the Mary Greeley Medical Center by an ambulance with serious injuries. The driver of dump truck walked away with minor injuries, police said.

The DOT was providing traffic protection for a Department of Corrections crew that was picking up trash in the median at the time of the crash.